US20010055744A1 - Dental implant and method for installing the same - Google Patents
Dental implant and method for installing the same Download PDFInfo
- Publication number
- US20010055744A1 US20010055744A1 US09/861,874 US86187401A US2001055744A1 US 20010055744 A1 US20010055744 A1 US 20010055744A1 US 86187401 A US86187401 A US 86187401A US 2001055744 A1 US2001055744 A1 US 2001055744A1
- Authority
- US
- United States
- Prior art keywords
- dental implant
- implant
- thread
- proximal
- distal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0022—Self-screwing
-
- A—HUMAN NECESSITIES
- A21—BAKING; EDIBLE DOUGHS
- A21D—TREATMENT, e.g. PRESERVATION, OF FLOUR OR DOUGH, e.g. BY ADDITION OF MATERIALS; BAKING; BAKERY PRODUCTS; PRESERVATION THEREOF
- A21D2/00—Treatment of flour or dough by adding materials thereto before or during baking
- A21D2/08—Treatment of flour or dough by adding materials thereto before or during baking by adding organic substances
- A21D2/14—Organic oxygen compounds
- A21D2/18—Carbohydrates
- A21D2/186—Starches; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23C—DAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
- A23C19/00—Cheese; Cheese preparations; Making thereof
- A23C19/06—Treating cheese curd after whey separation; Products obtained thereby
- A23C19/068—Particular types of cheese
- A23C19/08—Process cheese preparations; Making thereof, e.g. melting, emulsifying, sterilizing
- A23C19/082—Adding substances to the curd before or during melting; Melting salts
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23D—EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS, COOKING OILS
- A23D7/00—Edible oil or fat compositions containing an aqueous phase, e.g. margarines
- A23D7/005—Edible oil or fat compositions containing an aqueous phase, e.g. margarines characterised by ingredients other than fatty acid triglycerides
- A23D7/0056—Spread compositions
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23D—EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS, COOKING OILS
- A23D7/00—Edible oil or fat compositions containing an aqueous phase, e.g. margarines
- A23D7/015—Reducing calorie content; Reducing fat content, e.g. "halvarines"
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
- A61C8/0022—Self-screwing
- A61C8/0025—Self-screwing with multiple threads
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
- A61C8/0075—Implant heads specially designed for receiving an upper structure
Definitions
- the present invention relates generally to a dental implant, and more particularly to a dental implant with a thread design and structure which provides for dramatically improved loading to thereby facilitate an immediate load implant or an implant with dramatically reduced healing time.
- the present invention also relates to a method of installing the above identified implant.
- Dental implants of various configurations currently exist in the art. These implants are installed into prepared bone sites and function as a device for anchoring a component such as a tooth or dental appliance in the patient's mouth. Examples of currently available dental implants are shown in U.S. Pat. No. 5,062,800 issued to Niznick, U.S. Pat. No. 5,368,160 issued to Leuschen, et al. and U.S. Pat. No. 5,582,299 issued to Laxnaru.
- Existing dental implant devices commonly include an implant having external threads for installation into a prepared bone site and a hollow interior with internal threads extending from its superior or top end downwardly into the interior of the main body of the implant.
- Such internal threads are used for connecting an implant mount during the installation process and for connecting a healing cap or a replacement tooth or other prosthesis when the installation is complete.
- the implant mount is connected with the implant via a threaded clamp screw.
- the implant mount interfaces with the implant through a hex connection which enables the implant to be rotated via rotation of the implant mount. It is common for the implant to be provided to the attending surgeon in a pre-mounted position with the implant mount connected to the implant by the clamp screw.
- a dental hand piece with a placement adaptor is positioned onto the implant mount via a hex or other connection.
- the implant is then positioned in the prepared bone site and installed by rotation of the implant mount, and thus the implant, in a forward or clockwise direction.
- the hand piece with attached placement adaptor is then removed from the implant mount and an open end wrench or other tool is positioned onto the hex end of the implant mount to remove the same.
- a protective cover or healing screw is screwed into the internal threads of the hollow interior for the duration of the required healing time.
- the soft tissue surrounding the implant is extended and sutured over the healing screw, while in other cases the top of the implant is substantially flush with the surrounding tissue and the healing screw remains exposed during the healing period.
- the surgeon removes the protective screw and installs a healing cap.
- This healing cap is nonfunctional and remains in place while the tissue heals, generally 4-6 weeks.
- the restoring doctor installs the replacement tooth or other prosthesis.
- the replacement tooth or other prosthesis commonly includes a mounting stem with external threads to be received by the internal threads of the hollow interior.
- the present invention relates to a dental implant which facilitates elimination of the second surgery to remove the healing cap and apply the prosthesis or which facilitates significant reduction of the time necessary between the first surgery and placement of the final prosthesis. More specifically, the present invention relates to a dental implant structure in which the ratio of the minor to major thread diameters (the core to thread ratio) is decreased, or the ratio of the major to minor thread diameters (the thread to core ratio) is increased. Specifically, these ratios are decreased and increased, respectively, to increase the thread strength of the implant to the point where healing time is eliminated or substantially reduced, thereby facilitating immediate or reduced time loading.
- the present invention further relates to a dental implant with an improved external thread design which dramatically improves the resistance of the implant to chewing or compressive forces, and thus similarly eliminates or substantially reduces the time period between implant installation and the loading of the implant.
- the implant of the present invention is designed to go into, but preferably not through, the cortical plate. Accordingly, the length of the implants of the present invention is preferably less than 20 mm, more preferably no longer than about 15 mm and most preferably about 10-15 mm in length.
- the implant is provided with a unitary implant in which the threaded portion and the base or abutment portion for supporting the replacement tooth is a single piece structure in which such portions are integrally joined with one another.
- One embodiment of the implant of the present invention is to eliminate the hollow interior of the implant and to significantly reduce the core to thread ratio below the standard 0.75.
- an outwardly extending top or prosthesis receiving post is provided above the neck of the implant to receive the replacement tooth or other prosthesis. It has been found that the reduction in the core to thread ratio results in an unexpectedly increased resistance to compressive forces such as chewing or biting to thereby facilitate immediate loading of the implant.
- a further embodiment of the present invention includes providing the implant with an improved external thread design which includes first and second helical threads which are interleaved with one another and which exhibit different outside or major diameters.
- at least one of these helical threads is provided with a thread configuration in which the flat or the flatter thread side surface faces toward the distal or non-head end of the implant.
- a still further embodiment of the present invention is to provide an implant less than 20 mm in length with the thread design described above.
- an object of the present invention is to provide a dental implant which can be fully installed, together with the replacement tooth or other prosthesis, in a single surgery.
- Another object of the present invention is to provide a dental implant which eliminates the hollow interior for attaching the prosthesis.
- a further object of the present invention is to provide an immediate load dental implant to be installed into, but preferably not through, the cortical plate, thereby providing an implant of preferably less than 20 mm.
- a still further object of the present invention is to provide a dental implant with a reduced core to thread ratio and more specifically, a core to thread ratio of no greater than 0.70.
- a still further object of the present invention is to provide, independently or in combination with an implant of reduced core to thread ratio and/or an implant with a length of less than 20 mm, a unitary implant having an integral threaded portion and tooth supporting portions.
- a still further object of the present intention is to provide a dental implant with an improved external thread configuration to facilitate immediate loading to reduce the interval between first and second surgeries.
- a still further object of the present invention is to provide a dental implant structure by which the thread to core ratio can be significantly increased to a ratio of 1 . 40 or greater.
- FIG. 1 is a side view, partially in section, of a conventional dental implant.
- FIG. 2 is an elevational side view of a conventional healing screw for use with the dental implant of FIG. 1.
- FIG. 3 is an elevational side view of a replacement tooth for use with the dental implant of FIG. 1.
- FIG. 4 is a side view, partially in section, of one embodiment of the dental implant in accordance with the present invention.
- FIG. 5 is an enlarged sectional view of the thread configuration of the implant of the embodiment shown in FIG. 4.
- FIG. 6 is an elevational bottom view from the distal end of the dental implant of FIG. 4.
- FIG. 7 is an elevational top view from the proximal or head end of the dental implant of FIG. 4.
- FIG. 8 is a side view, partially in section, of a second embodiment of the dental implant in accordance with the present invention.
- FIG. 9 is an enlarged view of the thread configuration of the embodiment of the dental implant as shown in FIG. 8.
- FIG. 10 is an elevational bottom view from the distal end of the dental implant of FIG. 8.
- FIG. 11 is an elevational top view from the proximal or head end of the dental implant of FIG. 8.
- FIG. 12 is a side view, partially in section, of a third embodiment similar to that of FIG. 8, but with a modified thread design.
- FIG. 13 is a side view, partially in section, of a fourth embodiment of the dental implant of the present invention, which view is similar to that of FIG. 8, but with a further modified thread design.
- FIG. 14 is an enlarged view of the thread pattern of the dental implant embodiment of FIG. 13.
- FIG. 15 is an elevational side view, partially in section, of a replacement tooth for use with the implants of FIGS. 8, 12 and 13 .
- FIG. 16 is a modified prosthesis receiving post for the embodiments of FIGS. 8, 12 and 13 .
- FIG. 17 is a modified replacement tooth for use with the prosthesis receiving post design of FIG. 16.
- the present invention relates to improvements in a dental implant.
- a dental implant provides support for a replacement tooth or other prosthesis and thus is anchored into a tooth root, bone or other tissue.
- the dental implant provides support for such replacement tooth or prosthesis at its proximal or superior end.
- a dental implant does not function to secure two or more pieces of tissue, bones or other elements together as in conventional bone screws, nor does it function to provide any significant resistance to pulling out force as in conventional tissue or bone screws.
- FIG. 1 illustrates a conventional dental implant 10 having a main body portion 11 , a proximal or superior end 12 and a distal or inferior end 14 .
- the proximal end 12 is provided with a conventional hex configuration 15 to enable the implant to be rotated and installed into a pre-drilled hole in a tooth root or bone.
- the dental implant of FIG. 1 is provided with a hollow interior 16 which extends from the proximal end 12 into the main portion 11 of the implant for a substantial distance toward the distal end 14 .
- This hollow interior 16 is provided with internal threads.
- the exterior of the implant 10 is provided with threads 18 for securement to a tooth structure.
- Conventional dental implants have a core to thread ratio greater than 0.70 with the standard being about 0.75 or greater. This translates into a thread to core ratio of less than about 1.40, with the standard being about 1.20 or less.
- the core to thread ratio is the ratio between the dimension at the innermost edge of the thread (the minor diameter) to the dimension at the outermost edge of the thread, while the thread to core ratio is the ratio of the major diameter to the minor diameter.
- FIG. 2 illustrates a healing screw 17 having a proximal or head end 20 and an elongated stem portion 19 extending from the head 20 toward a distal end.
- the stem portion 19 is provided with external threads designed to be received by the internal threads of the hollow interior 16 (FIG. 1) and is substantially smaller in diameter than the proximal end 20 .
- the healing cap 17 is conventionally screwed into the hollow interior 16 of the implant 10 after installation of the implant and during the healing period for the surrounding bone or tooth tissue.
- FIG. 3 illustrates a conventional replacement tooth 21 having an elongated externally threaded stem 22 at its distal end and a replacement tooth portion 24 at its proximal end.
- the external threads of the stem 22 are designed to mate with the internal threads of the interior portion 16 .
- the replacement tooth 21 is installed into the implant 10 of FIG. 1 after the necessary healing period has elapsed and the healing cap 17 (FIG. 2) has been removed.
- FIGS. 4 - 7 showing a first embodiment of a dental implant 25 in accordance with the present invention.
- the dental implant 25 includes a main body portion 26 with a proximal or superior end 28 and a distal or inferior end 29 .
- the distal end 29 is provided with a plurality of cutting edges 32 to provide the implant with self tapping capabilities.
- the cutting edges 32 or other self-tapping structures as applied to dental implants are well known in the art and such structures are incorporated herein by reference.
- the distal end 29 of the implant 25 is also provided with a through-hole 34 for later bone growth, if desired. Such hole 34 , however, is not necessary to achieve the other benefits of the implant 25 .
- the proximal end 28 is provided with a rotation head in the form of a hex end or portion 30 for engagement by a hand piece or other tool or adaptor for the purpose of rotating the implant 25 during installation.
- a hollow interior 31 extends from the proximal end 28 into the main portion 26 of the implant 25 for a substantial distance toward the distal end 29 .
- the hollow interior 31 is provided with internal threads to receive a conventional healing cap or replacement tooth such as as shown in FIGS. 2 and 3, respectively, or any other prosthesis or attachment intended for use with dental implants.
- the diameter of the hollow interior 31 is reduced relative to that of conventional implants to accommodate the reduced core to thread ratio.
- the exterior of the main body of the implant 25 as shown in FIG. 4 is provided with a plurality of external threads comprising a first series of helical threads 35 extending from the distal end 29 substantially to the proximal end 28 and a second series of helical threads 36 interleaved between the first series of helical threads 35 and also extending from the distal end 29 substantially to the proximal end 28 .
- the helical threads 35 and 36 have first and second outer diametrical dimensions which are different from one another. As shown generally in FIG. 4 and more specifically in FIG. 5, the outer or major diameter of the first series of helical threads 35 is greater than the outer or major diameter of the second series of helical threads 36 .
- each of the first series of helical threads 35 includes an outer edge 38 extending helically around the implant 25 and defining the thread diameter or major diameter of the threads 35 .
- the specific size of this outer or major diameter which is twice the radius “R 01 ” shown in FIG. 5 as the distance between the edge 38 and the implant centerline 33 , will depend of the particular size of the implant.
- Conventional implants normally include implants with diameters of 3 mm to 6 mm, with most standard implants being 4 mm or 5 mm. Implants are conventionally provided in lengths from 10 mm to 15 mm and specifically in lengths of 10 mm, 11.5 mm, 13 mm and 15 mm.
- the helical threads 35 also include an inner edge 39 .
- the inner edge 39 defines the core diameter or minor diameter of the thread 35 which, as shown in FIG. 5, is twice the distance “R i ” between the edge 39 and the centerline 33 .
- the core diameter 39 defines the innermost portion of the thread 35 .
- the inner edge 39 of the thread extends helically around the implant 25 .
- the core to thread ratio or the minor to major diameter ratio of thread 35 is determined by comparing the minor diameter defined by twice the distance “R i ” to the major diameter defined by twice the distance “R 01 ”.
- this ratio R i /R 01 is about 0.70 or less and more preferably about 0.60 or less.
- the range of core to thread ratios for implants in accordance with the present invention is preferably 0.40 to 0.70, more preferably 0.45 to 0.65 and most preferably 0.50 to 0.60. These ratios are based on a major diameter of 4 mm and a minor diameter of about 2.25 mm for a 4 mm implant, and a major diameter of 5 mm and a minor diameter of about 3 mm for a 5 mm implant.
- the outer edge 38 terminates in a flat surface generally parallel to the longitudinal axis of the implant as shown. Although it can, if desired, terminate substantially at a point, it is preferred that the outer edge 38 terminate in a flat portion as shown having a dimension “A 1 ” of less than about 0.2 mm and more preferably between about 0.03 and 0.15 mm.
- the particular height H 1 of the thread 35 defined by the distance between the outer edge 38 and the inner edge 39 will vary with the particular size of the implant, the amount of torque desired to install the implant and the compressive force resistance desired.
- the thread 35 also includes a pair of side surfaces extending helically from the distal end 29 of the implant to the proximal end 28 .
- These side surfaces include a distal or distal facing surface 40 and a proximal or proximal facing surface 41 .
- these surfaces 40 and 41 form angles DA 1 and PA 1 , respectively, with a line extending perpendicular to the longitudinal or center axis 33 of the implant.
- these two angles DA 1 and PA 1 can be the same, it is preferred that the angle DA 1 be smaller than the angle PA 1 (or that the angle PA 1 be larger than the angle DA 1 ).
- the angle DA 1 be less than about 45°, more preferably less than about 25°, and most preferably less than about 10°.
- the angle PA 1 be between about 45 and 5°, more preferably between about 40 and 10°, and most preferably between about 35 and 20°.
- the surface 40 which comprises the flatter surface or smaller angle face the distal end of the implant as shown.
- the thread design 36 is similar to that of the thread 35 except that its outer or major diameter defined by twice the distance “R 02 ” between the outer edge 42 and the centerline 33 is less than the major diameter of the thread 35 . Similar to the thread 35 , the inner dimension of the thread 36 is defined by the inner edge 39 .
- the core to thread ratio, or minor to major diameter ratio, of the thread 36 is defined as the ratio of its minor diameter (twice the distance “R i ”) to its major diameter (twice the distance “R 02 ”). This core to thread ratio is expected to be greater than the core to thread ratio of the thread 35 since the denominator of the ratio is less. However, even this ratio is preferably less than the standard ratio of about 0.75. It is contemplated, however, that the core to thread ratio of the smaller thread in a thread pattern of multiple thread diameters 1 could be greater than the standard core to thread ratio of 0.75 without deviating from the present invention.
- the major diameter of the largest thread is used.
- the preferred values of the core to thread ratio as set forth above with respect to the thread 35 (the largest thread) are applicable.
- the outer edge 42 of the thread 36 is provided with a flat portion extending helically around the implant. Although this outer portion 42 can terminate at a point, it preferably terminates at a flat portion with a dimension A 2 of less than about 0.1 mm and more preferably between about 0.3 and 0.1 mm
- the second helical thread 36 includes a pair of sides extending helically along the length of the implant. Specifically, these sides include a distal or distal facing side 44 and a proximal or proximal facing side 45 . These sides 44 and 45 form angles DA 2 and PA 2 with a line extending perpendicular to the longitudinal or center axis 33 of the implant, respectively. Although these angles can be the same, it is preferred for the angle DA 2 of the distal side 44 to be smaller than the angle PA 2 of the proximal side 45 (or the angle PA 2 to be larger than the angle DA 2 ).
- the angle DA 2 of the distal side 44 is less than 45°, more preferably less than about 25° and most preferably less than about 10°.
- the angle PA 2 of the proximal side 45 is preferably between about 45 and 5°, and more preferably between about 35 and 10°.
- the distance between the threads 35 and 36 measured from the top outer edge of the thread 35 to the top outer edge of the thread 36 is defined by the distance W 1
- the distance between the threads 36 and 35 measured from the top outer edge of the thread 36 to the top outer edge of the thread 35 is defined by the distance W 2 .
- These distances relate to the pitch of the threads or the number of threads per unit length.
- the distances W 1 , and W 2 are such as to provide a pitch for the threads 35 of about 8-20 threads per inch and a similar pitch for the threads 36 of about 8-20 threads per inch. More preferably, the thread pitch should result in 10-18 threads per inch and most preferably about 12 threads per inch.
- the pitch of the threads 35 and 36 is preferably constant throughout the length of the implant, the pitch can be designed to vary, if desired.
- a 13 mm implant has about 4 to 10 turns of the thread 35 . More preferably, a 13 mm implant has about 6 to 8 turns of the thread 35 . This translates to a thread 35 density pitch of about 12 to 16 threads per inch.
- the implant of the present invention can be of various lengths, it is preferably of a length that will penetrate the cortical plate, but preferably not go through it.
- the preferred implant length in accordance with the present invention is less than 20 mm. More preferably, the length is no greater than 15 mm, and most preferably the length is about 10 to 15 mm.
- the length of the implant is that portion comprised of the threads.
- FIGS. 8, 9, 10 and 11 illustrating a second embodiment of a dental implant 47 of the present invention.
- the embodiment of the FIG. 8 includes a main implant portion 46 having first and second helical threads 50 and 51 , respectively, extending from the distal end 48 toward the proximal end 49 .
- the main body portion 46 and threads 50 and 51 of the embodiment of FIG. 8 are substantially the same as that of the embodiment of FIG. 4.
- the elevational distal end view of FIG. 10 of the embodiment of FIG. 8 is substantially the same as the distal end view of FIG. 6.
- the enlarged thread configuration illustrated in FIG. 9 is also similar to that shown in FIG. 5 with respect to the embodiment of FIG. 4.
- first and second helical threads 50 and 51 of the embodiment of FIG. 8 extend helically along a substantial length of the implant and are interleaved between each other.
- the core to thread ratios of the threads 50 and 51 and their respective configurations and dimensions are similar to those described and shown above with respect to FIG. 5.
- each of the threads 50 and 51 include distal or distal facing sides 55 and 58 , respectively, and proximal or proximal facing sides 56 and 59 , respectively. The angles which these sides form with a line extending perpendicular to the longitudinal axis or center line of the implant is similar to that disclosed with reference to FIG. 5.
- FIG. 8 differs from that of FIG. 4 in that an extended neck 43 is provided between the threaded portion and the proximal end 49 , a head or prosthesis receiving post 52 is provided to the proximal end 49 of the implant and the hollowed out interior portion 31 of the embodiment of FIG. 4 is eliminated.
- the proximal end of the head or post 52 is provided with a structure 54 for rotating the implant 47 during installation.
- this structure 54 comprises a pair of flats on opposite sides of the post 52 .
- the structure 54 is designed to mate with a hand piece or other tool or adaptor.
- this structure can be any structure which enables the implant to be rotated. It is also contemplated that a portion of the head or post 52 can be provided with a conventional hex end to receive an appropriate tool for rotation.
- the head 52 includes a circumferential groove 53 near its upper end. This groove is intended to receive a rubber loop to assist in installation of the implant. A plurality of grooves 57 are also provided for use when constructing impressions or temporaries.
- a replacement tooth or other prosthesis such as that illustrated in FIG. 15 would be connected to the post 52 .
- the replacement tooth includes a conventional tooth exterior 60 and an interior conforming substantially to the exterior figuration of the post 52 and portion 54 of FIG. 8. It is contemplated that with the embodiment of FIG. 8, the replacement tooth of FIG. 15 would be secured to the post 52 through an appropriate adhesive.
- the neck 43 can be of varying heights depending on the nature of the tissue and the particular prosthesis used. Preferably, the height of the neck 43 is between about 0.5 and 8 mm and most preferably between about 1 and 5 mm.
- FIG. 12 is an embodiment similar to that of FIG. 8 except that the threads 64 of the implant of FIG. 12 are of the same diameter and are symmetrical.
- the core to thread ratio of the threads 64 are substantially the same as that of the embodiment of FIG. 4.
- the core to thread ratios are preferably 0.70 or less and more preferably 0.60 or less.
- the preferred ranges of such ratios are 0.40 to 0.70, with more preferred and most preferred ratios being 0.45 to 0.65 and 0.50 to 0.60, respectively.
- FIG. 12 also includes a modified prosthesis receiving post comprising the post 63 extending outwardly from the neck 43 and a hexagonal end 54 to facilitate rotation of the implant.
- FIG. 13 is similar to that of the embodiment of FIG. 12 in that the threads 66 are of equal outer diameter, but is dissimilar to that of FIG. 12 in that the threads are not symmetrical.
- the details of this thread configuration are shown in FIG. 14.
- the distal or distal facing side 68 of the threads 66 forms an angle DA 3 with a line perpendicular to the longitudinal axis or center line 33 of the implant, while the proximal or proximal facing side 69 of the threads 66 forms an angle PA 3 .
- the angle DA 3 is less than the angle PA 3 (or the angle PA 3 is greater than the angle DA 3 ), with the preferred values of those angles being similar to those described above with respect to FIG. 5.
- FIG. 16 illustrates an alternate prosthesis receiving post for the implant embodiments of FIGS. 8, 12 and 13 .
- the head or post portion 52 is provided with an internal recess 70 .
- This recess 70 is provided with internal threads which are intended to receive external threads from a replacement tooth such as that illustrated in FIG. 17.
- the replacement tooth includes a main replacement tooth portion 71 and an elongated stem portion 72 having external threads matching the internal threads of the internal portion 70 of FIG. 16.
- the stem portion 72 is positioned entirely within the tooth portion 71 .
- the stem 72 is positioned into the interior portion 70 and rotated until tight.
- a dental implant which includes a proximal end, a distal end and an externally threaded shaft.
- the shaft preferably includes a core to thread ratio as specified above.
- the shaft further includes first and second helical threads which are interleaved with one another and embody first and second thread diameters, with one of the thread diameters being different than the other.
- the implant also preferably includes a prosthesis receiving post integrally positioned at the proximal end of the implant and extending outwardly from the proximal end to receive a prosthesis.
- the method further includes drilling or boring a hole into a tooth root or bone at a desired location and then inserting the distal end of the implant into the hole and rotating the dental implant to a desired degree of installation.
- the implant is not installed through the cortical plate.
- a replacement tooth or other prosthesis is mounted or attached to the prosthesis receiving post either via a threaded connection, adhesives, or the like. This installation of the replacement tooth or prosthesis is preferably performed immediately.
- the preferred method is a single surgery method in which both the installation of the implant and the installation of the prosthesis are completed in a single office visit.
Abstract
Description
- This is a continuation-in-part of U.S. application Ser. No. 09/175,007, filed Oct. 19, 1998.
- 1. Field of the Invention The present invention relates generally to a dental implant, and more particularly to a dental implant with a thread design and structure which provides for dramatically improved loading to thereby facilitate an immediate load implant or an implant with dramatically reduced healing time. The present invention also relates to a method of installing the above identified implant.
- 2. Description of the Prior Art
- Dental implants of various configurations currently exist in the art. These implants are installed into prepared bone sites and function as a device for anchoring a component such as a tooth or dental appliance in the patient's mouth. Examples of currently available dental implants are shown in U.S. Pat. No. 5,062,800 issued to Niznick, U.S. Pat. No. 5,368,160 issued to Leuschen, et al. and U.S. Pat. No. 5,582,299 issued to Laxnaru. Existing dental implant devices commonly include an implant having external threads for installation into a prepared bone site and a hollow interior with internal threads extending from its superior or top end downwardly into the interior of the main body of the implant. Such internal threads are used for connecting an implant mount during the installation process and for connecting a healing cap or a replacement tooth or other prosthesis when the installation is complete. During installation, the implant mount is connected with the implant via a threaded clamp screw. The implant mount interfaces with the implant through a hex connection which enables the implant to be rotated via rotation of the implant mount. It is common for the implant to be provided to the attending surgeon in a pre-mounted position with the implant mount connected to the implant by the clamp screw.
- Installation of a dental implant in accordance with current procedures can be summarized as follows. After preparation of the bone site, a dental hand piece with a placement adaptor is positioned onto the implant mount via a hex or other connection. The implant is then positioned in the prepared bone site and installed by rotation of the implant mount, and thus the implant, in a forward or clockwise direction. The hand piece with attached placement adaptor is then removed from the implant mount and an open end wrench or other tool is positioned onto the hex end of the implant mount to remove the same. Because the interface between the threads of a conventional implant and the surrounding bone or tooth tissue is insufficient to resist the compressive forces resulting from normal chewing or biting action, it is necessary to allow the bone or tooth tissue in contact with such threads to heal before a replacement tooth or other prosthesis can be applied. In most cases, this period can be six months or more. Thus, following installation of a conventional implant and removal of the implant mount, a protective cover or healing screw is screwed into the internal threads of the hollow interior for the duration of the required healing time. In some cases the soft tissue surrounding the implant is extended and sutured over the healing screw, while in other cases the top of the implant is substantially flush with the surrounding tissue and the healing screw remains exposed during the healing period.
- After the healing period has passed, the surgeon removes the protective screw and installs a healing cap. This healing cap is nonfunctional and remains in place while the tissue heals, generally 4-6 weeks. After this time period, the restoring doctor installs the replacement tooth or other prosthesis. The replacement tooth or other prosthesis commonly includes a mounting stem with external threads to be received by the internal threads of the hollow interior. Several drawbacks exist with respect to the current procedure. The primary drawback is that current procedures require two surgeries at intervals spaced by the required healing time: one surgery to install the implant, and a second surgery to remove the healing screw and install the healing cap and then later, the replacement tooth or prosthesis. The required healing time can be up to six months or longer. With conventional implants, the six month or more waiting time is needed because the external threads of the implant do not efficiently distribute the load and the bone is not strong enough immediately after installation to be fully loaded or to support the implant with a connected replacement tooth or other prosthesis. Thus, with current implants embodying current external designs, a healing period of up to six months or more is required after the first surgery (installation of the implant) to allow the tooth bone to grow around the implant and to heal.
- Prior implant designs have existed that allowed a tooth to be placed on the implant immediately. However, these designs utilized osseointegration rather than the current bone implant connection. A further design utilized a threaded implant in combination with a series of tapping instruments to obtain the required compressive force resistance for immediately loading the tooth. Neither of these designs, however, has been widely accepted.
- Accordingly, there is a need in the art for an improved dental implant with an improved thread configuration and an improved implant structure which eliminates the second surgery or dramatically reduces the time interval between the first surgery and placement of the final prosthesis.
- In contrast to the prior art, the present invention relates to a dental implant which facilitates elimination of the second surgery to remove the healing cap and apply the prosthesis or which facilitates significant reduction of the time necessary between the first surgery and placement of the final prosthesis. More specifically, the present invention relates to a dental implant structure in which the ratio of the minor to major thread diameters (the core to thread ratio) is decreased, or the ratio of the major to minor thread diameters (the thread to core ratio) is increased. Specifically, these ratios are decreased and increased, respectively, to increase the thread strength of the implant to the point where healing time is eliminated or substantially reduced, thereby facilitating immediate or reduced time loading. The present invention further relates to a dental implant with an improved external thread design which dramatically improves the resistance of the implant to chewing or compressive forces, and thus similarly eliminates or substantially reduces the time period between implant installation and the loading of the implant. Still further, the implant of the present invention is designed to go into, but preferably not through, the cortical plate. Accordingly, the length of the implants of the present invention is preferably less than 20 mm, more preferably no longer than about 15 mm and most preferably about 10-15 mm in length.
- To accommodate immediate loading of the implant of the present invention, the two piece abutment and cap screw of prior art implants are eliminated. Accordingly, in the present invention, the implant is provided with a unitary implant in which the threaded portion and the base or abutment portion for supporting the replacement tooth is a single piece structure in which such portions are integrally joined with one another.
- One embodiment of the implant of the present invention is to eliminate the hollow interior of the implant and to significantly reduce the core to thread ratio below the standard 0.75. To accommodate the eliminated interior an outwardly extending top or prosthesis receiving post is provided above the neck of the implant to receive the replacement tooth or other prosthesis. It has been found that the reduction in the core to thread ratio results in an unexpectedly increased resistance to compressive forces such as chewing or biting to thereby facilitate immediate loading of the implant.
- A further embodiment of the present invention includes providing the implant with an improved external thread design which includes first and second helical threads which are interleaved with one another and which exhibit different outside or major diameters. Preferably at least one of these helical threads is provided with a thread configuration in which the flat or the flatter thread side surface faces toward the distal or non-head end of the implant.
- A still further embodiment of the present invention is to provide an implant less than 20 mm in length with the thread design described above.
- Accordingly, an object of the present invention is to provide a dental implant which can be fully installed, together with the replacement tooth or other prosthesis, in a single surgery.
- Another object of the present invention is to provide a dental implant which eliminates the hollow interior for attaching the prosthesis.
- A further object of the present invention is to provide an immediate load dental implant to be installed into, but preferably not through, the cortical plate, thereby providing an implant of preferably less than 20 mm.
- A still further object of the present invention is to provide a dental implant with a reduced core to thread ratio and more specifically, a core to thread ratio of no greater than 0.70.
- A still further object of the present invention is to provide, independently or in combination with an implant of reduced core to thread ratio and/or an implant with a length of less than 20 mm, a unitary implant having an integral threaded portion and tooth supporting portions.
- A still further object of the present intention is to provide a dental implant with an improved external thread configuration to facilitate immediate loading to reduce the interval between first and second surgeries.
- A still further object of the present invention is to provide a dental implant structure by which the thread to core ratio can be significantly increased to a ratio of1.40 or greater.
- These and other objects of the present invention will become apparent with reference to the drawings, the description of the preferred embodiment and the appended claims.
- FIG. 1 is a side view, partially in section, of a conventional dental implant.
- FIG. 2 is an elevational side view of a conventional healing screw for use with the dental implant of FIG. 1.
- FIG. 3 is an elevational side view of a replacement tooth for use with the dental implant of FIG. 1.
- FIG. 4 is a side view, partially in section, of one embodiment of the dental implant in accordance with the present invention.
- FIG. 5 is an enlarged sectional view of the thread configuration of the implant of the embodiment shown in FIG. 4.
- FIG. 6 is an elevational bottom view from the distal end of the dental implant of FIG. 4.
- FIG. 7 is an elevational top view from the proximal or head end of the dental implant of FIG. 4.
- FIG. 8 is a side view, partially in section, of a second embodiment of the dental implant in accordance with the present invention.
- FIG. 9 is an enlarged view of the thread configuration of the embodiment of the dental implant as shown in FIG. 8.
- FIG. 10 is an elevational bottom view from the distal end of the dental implant of FIG. 8.
- FIG. 11 is an elevational top view from the proximal or head end of the dental implant of FIG. 8.
- FIG. 12 is a side view, partially in section, of a third embodiment similar to that of FIG. 8, but with a modified thread design.
- FIG. 13 is a side view, partially in section, of a fourth embodiment of the dental implant of the present invention, which view is similar to that of FIG. 8, but with a further modified thread design.
- FIG. 14 is an enlarged view of the thread pattern of the dental implant embodiment of FIG. 13.
- FIG. 15 is an elevational side view, partially in section, of a replacement tooth for use with the implants of FIGS. 8, 12 and13.
- FIG. 16 is a modified prosthesis receiving post for the embodiments of FIGS. 8, 12 and13.
- FIG. 17 is a modified replacement tooth for use with the prosthesis receiving post design of FIG. 16.
- The present invention relates to improvements in a dental implant. In general, a dental implant provides support for a replacement tooth or other prosthesis and thus is anchored into a tooth root, bone or other tissue. The dental implant provides support for such replacement tooth or prosthesis at its proximal or superior end. A dental implant does not function to secure two or more pieces of tissue, bones or other elements together as in conventional bone screws, nor does it function to provide any significant resistance to pulling out force as in conventional tissue or bone screws.
- Reference is first made to FIGS. 1, 2, and3 showing a conventional dental implant and related structures known in the art. Specifically, FIG. 1 illustrates a conventional
dental implant 10 having a main body portion 11, a proximal orsuperior end 12 and a distal or inferior end 14. Theproximal end 12 is provided with aconventional hex configuration 15 to enable the implant to be rotated and installed into a pre-drilled hole in a tooth root or bone. The dental implant of FIG. 1 is provided with ahollow interior 16 which extends from theproximal end 12 into the main portion 11 of the implant for a substantial distance toward the distal end 14. This hollow interior 16 is provided with internal threads. The exterior of theimplant 10 is provided withthreads 18 for securement to a tooth structure. - Conventional dental implants have a core to thread ratio greater than 0.70 with the standard being about 0.75 or greater. This translates into a thread to core ratio of less than about 1.40, with the standard being about 1.20 or less. The core to thread ratio is the ratio between the dimension at the innermost edge of the thread (the minor diameter) to the dimension at the outermost edge of the thread, while the thread to core ratio is the ratio of the major diameter to the minor diameter.
- FIGS. 2 and 3 illustrate elements designed for use with the conventional dental implant of FIG. 1. Specifically, FIG. 2 illustrates a
healing screw 17 having a proximal orhead end 20 and anelongated stem portion 19 extending from thehead 20 toward a distal end. Thestem portion 19 is provided with external threads designed to be received by the internal threads of the hollow interior 16 (FIG. 1) and is substantially smaller in diameter than theproximal end 20. Thehealing cap 17 is conventionally screwed into thehollow interior 16 of theimplant 10 after installation of the implant and during the healing period for the surrounding bone or tooth tissue. - FIG. 3 illustrates a
conventional replacement tooth 21 having an elongated externally threadedstem 22 at its distal end and areplacement tooth portion 24 at its proximal end. The external threads of thestem 22 are designed to mate with the internal threads of theinterior portion 16. Thereplacement tooth 21 is installed into theimplant 10 of FIG. 1 after the necessary healing period has elapsed and the healing cap 17 (FIG. 2) has been removed. - General reference is next made to FIGS.4-7 showing a first embodiment of a
dental implant 25 in accordance with the present invention. Thedental implant 25 includes amain body portion 26 with a proximal orsuperior end 28 and a distal orinferior end 29. As illustrated best in FIGS. 4 and 6, thedistal end 29 is provided with a plurality of cuttingedges 32 to provide the implant with self tapping capabilities. The cutting edges 32 or other self-tapping structures as applied to dental implants are well known in the art and such structures are incorporated herein by reference. In the preferred embodiment, thedistal end 29 of theimplant 25 is also provided with a through-hole 34 for later bone growth, if desired.Such hole 34, however, is not necessary to achieve the other benefits of theimplant 25. - As shown in FIGS. 4 and 7, the
proximal end 28 is provided with a rotation head in the form of a hex end orportion 30 for engagement by a hand piece or other tool or adaptor for the purpose of rotating theimplant 25 during installation. Ahollow interior 31 extends from theproximal end 28 into themain portion 26 of theimplant 25 for a substantial distance toward thedistal end 29. Thehollow interior 31 is provided with internal threads to receive a conventional healing cap or replacement tooth such as as shown in FIGS. 2 and 3, respectively, or any other prosthesis or attachment intended for use with dental implants. In this embodiment, the diameter of thehollow interior 31 is reduced relative to that of conventional implants to accommodate the reduced core to thread ratio. - The exterior of the main body of the
implant 25 as shown in FIG. 4 is provided with a plurality of external threads comprising a first series ofhelical threads 35 extending from thedistal end 29 substantially to theproximal end 28 and a second series ofhelical threads 36 interleaved between the first series ofhelical threads 35 and also extending from thedistal end 29 substantially to theproximal end 28. In the preferred embodiment, thehelical threads helical threads 35 is greater than the outer or major diameter of the second series ofhelical threads 36. - With reference to FIG. 5, each of the first series of
helical threads 35 includes anouter edge 38 extending helically around theimplant 25 and defining the thread diameter or major diameter of thethreads 35. The specific size of this outer or major diameter, which is twice the radius “R01” shown in FIG. 5 as the distance between theedge 38 and theimplant centerline 33, will depend of the particular size of the implant. Conventional implants normally include implants with diameters of 3 mm to 6 mm, with most standard implants being 4 mm or 5 mm. Implants are conventionally provided in lengths from 10 mm to 15 mm and specifically in lengths of 10 mm, 11.5 mm, 13 mm and 15 mm. - The
helical threads 35 also include aninner edge 39. Theinner edge 39 defines the core diameter or minor diameter of thethread 35 which, as shown in FIG. 5, is twice the distance “Ri” between theedge 39 and thecenterline 33. Thecore diameter 39 defines the innermost portion of thethread 35. Like theouter edge 38, theinner edge 39 of the thread extends helically around theimplant 25. The core to thread ratio or the minor to major diameter ratio ofthread 35 is determined by comparing the minor diameter defined by twice the distance “Ri” to the major diameter defined by twice the distance “R01”. Preferably this ratio Ri/R01 is about 0.70 or less and more preferably about 0.60 or less. The range of core to thread ratios for implants in accordance with the present invention is preferably 0.40 to 0.70, more preferably 0.45 to 0.65 and most preferably 0.50 to 0.60. These ratios are based on a major diameter of 4 mm and a minor diameter of about 2.25 mm for a 4 mm implant, and a major diameter of 5 mm and a minor diameter of about 3 mm for a 5 mm implant. - With these core to thread ratios, it has unexpectedly been found that the resistance of the implant to compressive forces is dramatically increased. This increase is significantly greater than what one would expect by comparing the relative thread surface areas of the implant of the present invention with those of conventional implants with a standard core to thread ratio of about 0.75.
- In a preferred embodiment, the
outer edge 38 terminates in a flat surface generally parallel to the longitudinal axis of the implant as shown. Although it can, if desired, terminate substantially at a point, it is preferred that theouter edge 38 terminate in a flat portion as shown having a dimension “A1” of less than about 0.2 mm and more preferably between about 0.03 and 0.15 mm. - The particular height H1 of the
thread 35 defined by the distance between theouter edge 38 and theinner edge 39 will vary with the particular size of the implant, the amount of torque desired to install the implant and the compressive force resistance desired. - The
thread 35 also includes a pair of side surfaces extending helically from thedistal end 29 of the implant to theproximal end 28. These side surfaces include a distal or distal facingsurface 40 and a proximal or proximal facingsurface 41. As shown best in FIG. 5, thesesurfaces center axis 33 of the implant. Although these two angles DA1 and PA1 can be the same, it is preferred that the angle DA1 be smaller than the angle PA1 (or that the angle PA1 be larger than the angle DA1). More specifically, it is preferred that the angle DA1 be less than about 45°, more preferably less than about 25°, and most preferably less than about 10°. In contrast, it is preferred that the angle PA1 be between about 45 and 5°, more preferably between about 40 and 10°, and most preferably between about 35 and 20°. With this structure, it is preferred that thesurface 40, which comprises the flatter surface or smaller angle face the distal end of the implant as shown. - The
thread design 36 is similar to that of thethread 35 except that its outer or major diameter defined by twice the distance “R02” between theouter edge 42 and thecenterline 33 is less than the major diameter of thethread 35. Similar to thethread 35, the inner dimension of thethread 36 is defined by theinner edge 39. The core to thread ratio, or minor to major diameter ratio, of thethread 36 is defined as the ratio of its minor diameter (twice the distance “Ri”) to its major diameter (twice the distance “R02”). This core to thread ratio is expected to be greater than the core to thread ratio of thethread 35 since the denominator of the ratio is less. However, even this ratio is preferably less than the standard ratio of about 0.75. It is contemplated, however, that the core to thread ratio of the smaller thread in a thread pattern ofmultiple thread diameters 1 could be greater than the standard core to thread ratio of 0.75 without deviating from the present invention. - In determining core to thread ratio in a multiple thread diameter pattern in accordance with the present invention, the major diameter of the largest thread is used. Thus, in the embodiment of FIGS. 4 and 8, the preferred values of the core to thread ratio as set forth above with respect to the thread35 (the largest thread) are applicable.
- Similar to the
thread 35, theouter edge 42 of thethread 36 is provided with a flat portion extending helically around the implant. Although thisouter portion 42 can terminate at a point, it preferably terminates at a flat portion with a dimension A2 of less than about 0.1 mm and more preferably between about 0.3 and 0.1 mm - Also, similar to
thread 35, the secondhelical thread 36 includes a pair of sides extending helically along the length of the implant. Specifically, these sides include a distal or distal facingside 44 and a proximal or proximal facingside 45. Thesesides center axis 33 of the implant, respectively. Although these angles can be the same, it is preferred for the angle DA2 of thedistal side 44 to be smaller than the angle PA2 of the proximal side 45 (or the angle PA2 to be larger than the angle DA2). Preferably the angle DA2 of thedistal side 44 is less than 45°, more preferably less than about 25° and most preferably less than about 10°. The angle PA2 of theproximal side 45 is preferably between about 45 and 5°, and more preferably between about 35 and 10°. - The distance between the
threads thread 35 to the top outer edge of thethread 36 is defined by the distance W1, while the distance between thethreads thread 36 to the top outer edge of thethread 35 is defined by the distance W2. These distances relate to the pitch of the threads or the number of threads per unit length. Preferably, the distances W1, and W2 are such as to provide a pitch for thethreads 35 of about 8-20 threads per inch and a similar pitch for thethreads 36 of about 8-20 threads per inch. More preferably, the thread pitch should result in 10-18 threads per inch and most preferably about 12 threads per inch. Although the pitch of thethreads - In the preferred embodiment, a 13 mm implant has about 4 to 10 turns of the
thread 35. More preferably, a 13 mm implant has about 6 to 8 turns of thethread 35. This translates to athread 35 density pitch of about 12 to 16 threads per inch. - Although the implant of the present invention can be of various lengths, it is preferably of a length that will penetrate the cortical plate, but preferably not go through it. Thus, the preferred implant length in accordance with the present invention is less than 20 mm. More preferably, the length is no greater than 15 mm, and most preferably the length is about 10 to 15 mm. For purposes of the present invention, the length of the implant is that portion comprised of the threads.
- Reference is next made to FIGS. 8, 9,10 and 11 illustrating a second embodiment of a dental implant 47 of the present invention. Specifically, the embodiment of the FIG. 8 includes a
main implant portion 46 having first and secondhelical threads distal end 48 toward theproximal end 49. Themain body portion 46 andthreads helical threads threads threads sides - The embodiment of FIG. 8 differs from that of FIG. 4 in that an
extended neck 43 is provided between the threaded portion and theproximal end 49, a head orprosthesis receiving post 52 is provided to theproximal end 49 of the implant and the hollowed outinterior portion 31 of the embodiment of FIG. 4 is eliminated. Further, the proximal end of the head or post 52 is provided with astructure 54 for rotating the implant 47 during installation. In the preferred embodiment, thisstructure 54 comprises a pair of flats on opposite sides of thepost 52. Thestructure 54 is designed to mate with a hand piece or other tool or adaptor. However, this structure can be any structure which enables the implant to be rotated. It is also contemplated that a portion of the head or post 52 can be provided with a conventional hex end to receive an appropriate tool for rotation. - As shown best in FIG. 8, the
head 52 includes acircumferential groove 53 near its upper end. This groove is intended to receive a rubber loop to assist in installation of the implant. A plurality ofgrooves 57 are also provided for use when constructing impressions or temporaries. - It is contemplated that with the embodiment of FIG. 8, a replacement tooth or other prosthesis such as that illustrated in FIG. 15 would be connected to the
post 52. As shown in FIG. 15, the replacement tooth includes aconventional tooth exterior 60 and an interior conforming substantially to the exterior figuration of thepost 52 andportion 54 of FIG. 8. It is contemplated that with the embodiment of FIG. 8, the replacement tooth of FIG. 15 would be secured to thepost 52 through an appropriate adhesive. Theneck 43 can be of varying heights depending on the nature of the tissue and the particular prosthesis used. Preferably, the height of theneck 43 is between about 0.5 and 8 mm and most preferably between about 1 and 5 mm. - The embodiment shown in FIG. 12 is an embodiment similar to that of FIG. 8 except that the threads64 of the implant of FIG. 12 are of the same diameter and are symmetrical. The core to thread ratio of the threads 64, however, are substantially the same as that of the embodiment of FIG. 4. Specifically, the core to thread ratios are preferably 0.70 or less and more preferably 0.60 or less. The preferred ranges of such ratios are 0.40 to 0.70, with more preferred and most preferred ratios being 0.45 to 0.65 and 0.50 to 0.60, respectively. FIG. 12 also includes a modified prosthesis receiving post comprising the post 63 extending outwardly from the
neck 43 and ahexagonal end 54 to facilitate rotation of the implant. - The embodiment of FIG. 13 is similar to that of the embodiment of FIG. 12 in that the
threads 66 are of equal outer diameter, but is dissimilar to that of FIG. 12 in that the threads are not symmetrical. The details of this thread configuration are shown in FIG. 14. As shown in FIG. 14, the distal or distal facingside 68 of thethreads 66 forms an angle DA3 with a line perpendicular to the longitudinal axis orcenter line 33 of the implant, while the proximal or proximal facingside 69 of thethreads 66 forms an angle PA3. In the embodiment of FIGS. 13 and 14, the angle DA3 is less than the angle PA3 (or the angle PA3 is greater than the angle DA3), with the preferred values of those angles being similar to those described above with respect to FIG. 5. - FIG. 16 illustrates an alternate prosthesis receiving post for the implant embodiments of FIGS. 8, 12 and13. In the embodiment of FIG. 16, the head or
post portion 52 is provided with aninternal recess 70. Thisrecess 70 is provided with internal threads which are intended to receive external threads from a replacement tooth such as that illustrated in FIG. 17. In FIG. 17, the replacement tooth includes a mainreplacement tooth portion 71 and anelongated stem portion 72 having external threads matching the internal threads of theinternal portion 70 of FIG. 16. As shown, thestem portion 72 is positioned entirely within thetooth portion 71. To install the replacement tooth of FIG. 17 on the implant of FIG. 16, thestem 72 is positioned into theinterior portion 70 and rotated until tight. - Having described the detailed structure of the preferred embodiment of the present invention, the use of the dental implant and the method aspect of the present invention can be understood best as follows: First, a dental implant is provided which includes a proximal end, a distal end and an externally threaded shaft. The shaft preferably includes a core to thread ratio as specified above. The shaft further includes first and second helical threads which are interleaved with one another and embody first and second thread diameters, with one of the thread diameters being different than the other. The implant also preferably includes a prosthesis receiving post integrally positioned at the proximal end of the implant and extending outwardly from the proximal end to receive a prosthesis. The method further includes drilling or boring a hole into a tooth root or bone at a desired location and then inserting the distal end of the implant into the hole and rotating the dental implant to a desired degree of installation. Preferably, the implant is not installed through the cortical plate. Finally, a replacement tooth or other prosthesis is mounted or attached to the prosthesis receiving post either via a threaded connection, adhesives, or the like. This installation of the replacement tooth or prosthesis is preferably performed immediately. Thus, the preferred method is a single surgery method in which both the installation of the implant and the installation of the prosthesis are completed in a single office visit.
- Although the description of the preferred embodiment has been quite specific, it is contemplated that various modifications could be made without deviating from the spirit of the present invention. Accordingly, it is intended that the scope of the present invention be dictated by the appended claims rather than by description of the preferred embodiment.
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/861,874 US20010055744A1 (en) | 1998-10-19 | 2001-05-21 | Dental implant and method for installing the same |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/175,007 US5967783A (en) | 1998-10-19 | 1998-10-19 | Threaded dental implant with a core to thread ratio facilitating immediate loading and method of installation |
US09/416,355 US6234797B1 (en) | 1998-10-19 | 1999-10-12 | Dental implant and method for installing the same |
US09/861,874 US20010055744A1 (en) | 1998-10-19 | 2001-05-21 | Dental implant and method for installing the same |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/416,355 Continuation US6234797B1 (en) | 1998-10-19 | 1999-10-12 | Dental implant and method for installing the same |
Publications (1)
Publication Number | Publication Date |
---|---|
US20010055744A1 true US20010055744A1 (en) | 2001-12-27 |
Family
ID=22638451
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/175,007 Expired - Fee Related US5967783A (en) | 1998-10-16 | 1998-10-19 | Threaded dental implant with a core to thread ratio facilitating immediate loading and method of installation |
US09/416,355 Expired - Fee Related US6234797B1 (en) | 1998-10-19 | 1999-10-12 | Dental implant and method for installing the same |
US09/861,874 Abandoned US20010055744A1 (en) | 1998-10-19 | 2001-05-21 | Dental implant and method for installing the same |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/175,007 Expired - Fee Related US5967783A (en) | 1998-10-16 | 1998-10-19 | Threaded dental implant with a core to thread ratio facilitating immediate loading and method of installation |
US09/416,355 Expired - Fee Related US6234797B1 (en) | 1998-10-19 | 1999-10-12 | Dental implant and method for installing the same |
Country Status (6)
Country | Link |
---|---|
US (3) | US5967783A (en) |
EP (1) | EP1126793A1 (en) |
JP (1) | JP2002527188A (en) |
AU (1) | AU1122500A (en) |
CA (1) | CA2349571A1 (en) |
WO (1) | WO2000023003A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2211292A1 (en) * | 2002-07-10 | 2004-07-01 | Implant Microdent System, S.L. | Dental implant comprises threaded bar with end for insertion in bone mass and opposite end for receiving components of dental implant together with axial hole for coupling them |
DE202005005421U1 (en) * | 2005-04-05 | 2006-08-10 | Dinkelacker, Wolfgang, Dr.med.dent. | Helical dental implant |
US20060204930A1 (en) * | 2003-03-26 | 2006-09-14 | Young-Taek Sul | Helical implant |
ES2285955A1 (en) * | 2007-02-16 | 2007-11-16 | Marcela Ridao Dalmau | Dental implant has main body with insertion end in bony mass of conical trunk shape and upper terminal in opposite recipient end for attachment of dental prosthesis with regular prismatic form |
US8221119B1 (en) | 2007-10-09 | 2012-07-17 | Maurice Valen | Dental implant and method of installing the same |
US20170196663A1 (en) * | 2009-11-03 | 2017-07-13 | Ben Zion Karmon | Dental Implant |
Families Citing this family (117)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6149432A (en) * | 1993-12-27 | 2000-11-21 | Biolok International, Inc. | Buttress thread dental implant |
WO1997025933A1 (en) * | 1996-01-18 | 1997-07-24 | Implant Innovations, Inc. | Reduced friction screw-type dental implant |
US5967783A (en) | 1998-10-19 | 1999-10-19 | Ura; Robert S. | Threaded dental implant with a core to thread ratio facilitating immediate loading and method of installation |
US6244073B1 (en) * | 1999-02-05 | 2001-06-12 | Dennis John Kaping, Jr. | Body jewelry cap |
US6743233B1 (en) | 2000-08-02 | 2004-06-01 | Orthopaedic Biosystems, Ltd., Inc. | Medical screw and method of installation |
US20060078847A1 (en) * | 2000-09-29 | 2006-04-13 | Kwan Norman H | Dental implant system and additional methods of attachment |
US20070037123A1 (en) * | 2000-10-26 | 2007-02-15 | Mansueto Robert F | High-strength dental-implant w/curvilinear-indexing and tool-free delivery-system |
KR100414885B1 (en) * | 2000-12-09 | 2004-01-24 | 주식회사 워랜텍 | Dental implant and head of a compaction drill |
US7137817B2 (en) * | 2000-12-22 | 2006-11-21 | Quantum Bioengineering, Ltd. | Implant fixation device |
US6368108B1 (en) | 2001-01-05 | 2002-04-09 | Sulzer Dental Inc | Method for immediately placing a non-occlusive dental implant prosthesis |
US6746244B2 (en) * | 2001-01-05 | 2004-06-08 | Sulzer Dental Inc. | Method for immediately placing a non-occlusive dental implant prosthesis |
US6402515B1 (en) * | 2001-01-10 | 2002-06-11 | Sulzer Dental Inc. | Dental implant with variable profile thread |
EP1355581B1 (en) * | 2001-02-02 | 2007-12-19 | Friadent GmbH | Implant system |
US6672870B2 (en) | 2001-03-20 | 2004-01-06 | John G. Knapp | Method and instrumentation for attaching dentures |
US20060199152A1 (en) * | 2001-06-04 | 2006-09-07 | Hurson Steven M | Natural implant system |
US6527554B2 (en) * | 2001-06-04 | 2003-03-04 | Nobel Biocare Ab | Natural implant system |
GB0123804D0 (en) * | 2001-10-04 | 2001-11-21 | Osseobiotek Ltd | Implant |
DE10159683A1 (en) * | 2001-11-30 | 2003-06-18 | Michael Gahlert | Dantalimplantat |
SE520756C2 (en) * | 2001-12-21 | 2003-08-19 | Nobel Biocare Ab | Method of providing surface structure on implants as well as such implants |
SE523395C2 (en) | 2001-12-21 | 2004-04-13 | Nobel Biocare Ab | Implants and methods and systems for providing such implants |
US7091267B2 (en) * | 2002-03-19 | 2006-08-15 | General Electric Company | Resinous compositions, method of manufacture thereof and articles fabricated from the composition |
AU2002314963B2 (en) * | 2002-06-06 | 2008-08-28 | Nobel Biocare Services Ag | Natural implant system |
US7033174B2 (en) * | 2002-06-07 | 2006-04-25 | Thierry Giorno | Prosthetic mounting device |
US7217130B2 (en) * | 2002-06-07 | 2007-05-15 | Thierry Giorno | Prosthesis mounting device and assembly |
US6793678B2 (en) | 2002-06-27 | 2004-09-21 | Depuy Acromed, Inc. | Prosthetic intervertebral motion disc having dampening |
WO2004012652A2 (en) * | 2002-08-02 | 2004-02-12 | Yissum Research Development Company Of The Hebrew University Of Jerusalem | Treatment of multiple sclerosis with brain targeted anti oxidant compounds |
IL151145A0 (en) * | 2002-08-08 | 2003-04-10 | Aminov Baruch | Apparatus for performing dental implants |
US6997711B2 (en) * | 2002-12-23 | 2006-02-14 | Robert Jeffrey Miller | Dental implant |
SE526667C2 (en) * | 2002-12-30 | 2005-10-25 | Nobel Biocare Ab | Device for implants and method for making the implant |
DE50305895D1 (en) * | 2003-02-05 | 2007-01-18 | Straumann Holding Ag | Extension piece for a dental implant, transfer aid and method for creating a base for a retention element |
US20040161725A1 (en) * | 2003-02-13 | 2004-08-19 | Clement Milton A. | Dental implantation system, support, and related methods |
US7179088B2 (en) * | 2003-03-18 | 2007-02-20 | Cagenix, Inc. | Lobed dental implant |
US20040185418A1 (en) * | 2003-03-18 | 2004-09-23 | Schulter Carl W. | Dental implant fixture |
DE10319036A1 (en) * | 2003-04-25 | 2004-11-25 | Volz, Ulrich, Dr.med.dent. | dental implant |
IL156033A0 (en) | 2003-05-21 | 2004-03-28 | Ophir Fromovich Ophir Fromovic | Dental implant |
US7670142B2 (en) * | 2003-06-03 | 2010-03-02 | Intra-Lock International, Inc. | Prosthesis mounting device and assembly |
US20050021036A1 (en) * | 2003-07-21 | 2005-01-27 | Whitmore Robin C. | Self-drilling, self-tapping bone screw |
US8540755B2 (en) | 2003-07-21 | 2013-09-24 | Robin C. Whitmore | Self-drilling self-tapping bone screw |
US7108511B1 (en) * | 2003-08-15 | 2006-09-19 | Shatkin Todd E | System of dental restoration of single stage dental implants and loading with a preformed crown restoration |
KR20050022738A (en) | 2003-08-29 | 2005-03-08 | 주식회사 메가젠 | Dental implant |
SE526746C2 (en) * | 2003-12-11 | 2005-11-01 | Nobel Biocare Ab | Implant applicable to dentures with associated soft tissue |
KR100491551B1 (en) * | 2004-01-06 | 2005-05-27 | 주식회사 내이 | Implant |
GB0405655D0 (en) * | 2004-03-12 | 2004-04-21 | Eilertsen Eilert | Dental implant |
US9387313B2 (en) | 2004-08-03 | 2016-07-12 | Interventional Spine, Inc. | Telescopic percutaneous tissue dilation systems and related methods |
US20060154203A1 (en) * | 2005-01-10 | 2006-07-13 | Emanuelli Silvio F | Dental implants having anatomical emergence |
US7699613B2 (en) * | 2005-02-11 | 2010-04-20 | Niznick Gerald A | One-piece, screw-receiving, externally-threaded endosseous dental implants and related transfer components, comfort caps and abutments |
EP1792580A1 (en) * | 2005-09-27 | 2007-06-06 | Ziterion GmbH | Two-part dental implants made of biocompatible ceramics |
WO2007057903A2 (en) * | 2005-11-18 | 2007-05-24 | Apexum Ltd. | Method of treating dental periapical lesions |
US7530810B2 (en) * | 2006-08-30 | 2009-05-12 | Clement Milton A | Dental fixture implantation system and associated method |
ATE505152T1 (en) * | 2006-10-11 | 2011-04-15 | Astra Tech Ab | IMPLANT |
US8083769B2 (en) * | 2006-11-01 | 2011-12-27 | Depuy Mitek, Inc. | Wired sutures |
US8105382B2 (en) | 2006-12-07 | 2012-01-31 | Interventional Spine, Inc. | Intervertebral implant |
US20080234763A1 (en) * | 2007-03-16 | 2008-09-25 | Patterson Chad J | Surgical compression bone screw |
US8038442B2 (en) | 2007-04-23 | 2011-10-18 | Nobel Biocare Services Ag | Dental implant and dental component connection |
US7806693B2 (en) | 2007-04-23 | 2010-10-05 | Nobel Biocare Services Ag | Dental implant |
US8900307B2 (en) | 2007-06-26 | 2014-12-02 | DePuy Synthes Products, LLC | Highly lordosed fusion cage |
US8882801B2 (en) * | 2007-09-14 | 2014-11-11 | Depuy Mitek, Llc | Dual thread cannulated suture anchor |
US8702754B2 (en) | 2007-09-14 | 2014-04-22 | Depuy Mitek, Llc | Methods for anchoring suture to bone |
ES2321051B1 (en) * | 2007-11-30 | 2010-03-04 | Juan Carlos Garcia Saban | DENTAL IMPLANT. |
ES2321573B1 (en) * | 2007-12-07 | 2010-03-26 | Juan Carlos Garcia Saban | POST-EXTRACTION DENTAL IMPLANT. |
EP2471493A1 (en) | 2008-01-17 | 2012-07-04 | Synthes GmbH | An expandable intervertebral implant and associated method of manufacturing the same |
KR20110003475A (en) | 2008-04-05 | 2011-01-12 | 신세스 게엠바하 | Expandable intervertebral implant |
US8758012B2 (en) * | 2008-07-14 | 2014-06-24 | Nobel Biocare Services Ag | Compact dental implant |
KR100981719B1 (en) * | 2008-08-20 | 2010-09-13 | 주식회사 메가젠임플란트 | Dental Implant Fixture |
US8454363B2 (en) | 2008-11-06 | 2013-06-04 | William B. Worthington | Dental implant system |
KR101029065B1 (en) | 2009-02-24 | 2011-04-15 | (주) 시원 | Dental implant |
EP2233108B1 (en) * | 2009-03-23 | 2015-04-29 | Dentsply IH AB | Bone fixture |
US9526620B2 (en) | 2009-03-30 | 2016-12-27 | DePuy Synthes Products, Inc. | Zero profile spinal fusion cage |
US9393129B2 (en) | 2009-12-10 | 2016-07-19 | DePuy Synthes Products, Inc. | Bellows-like expandable interbody fusion cage |
US20110143318A1 (en) * | 2009-12-11 | 2011-06-16 | Zvi Laster | Winged implant |
KR101134342B1 (en) | 2010-04-22 | 2012-04-09 | 주식회사 메가젠임플란트 | Dental implant fixture and implant set having the same |
US9592063B2 (en) | 2010-06-24 | 2017-03-14 | DePuy Synthes Products, Inc. | Universal trial for lateral cages |
US8979860B2 (en) | 2010-06-24 | 2015-03-17 | DePuy Synthes Products. LLC | Enhanced cage insertion device |
TW201215379A (en) | 2010-06-29 | 2012-04-16 | Synthes Gmbh | Distractible intervertebral implant |
US8435264B2 (en) | 2010-08-30 | 2013-05-07 | Depuy Mitek, Llc | Knotless suture anchor and driver |
US8460340B2 (en) | 2010-08-30 | 2013-06-11 | Depuy Mitek, Llc | Knotless suture anchor |
US8469998B2 (en) | 2010-08-30 | 2013-06-25 | Depuy Mitek, Llc | Knotless suture anchor |
US9402732B2 (en) | 2010-10-11 | 2016-08-02 | DePuy Synthes Products, Inc. | Expandable interspinous process spacer implant |
DE102011001401A1 (en) * | 2010-12-20 | 2012-06-21 | Frank-Peter Spahn | Crestal implant and method for its processing |
JP5108117B2 (en) * | 2011-01-04 | 2012-12-26 | ノベル バイオケア サーヴィシィズ アクチエンゲゼルシャフト | Natural implant system |
WO2012095851A2 (en) | 2011-01-13 | 2012-07-19 | Cadent Ltd. | Methods, systems and accessories useful for procedures relating to dental implants |
WO2014018098A1 (en) | 2012-07-26 | 2014-01-30 | DePuy Synthes Products, LLC | Expandable implant |
US8932059B2 (en) * | 2012-08-07 | 2015-01-13 | Mazen Dukhan | Dental implant and method of implantation |
US20140067069A1 (en) | 2012-08-30 | 2014-03-06 | Interventional Spine, Inc. | Artificial disc |
US9782209B2 (en) | 2012-10-03 | 2017-10-10 | Rtg Scientific | Medical fastener |
US9522070B2 (en) | 2013-03-07 | 2016-12-20 | Interventional Spine, Inc. | Intervertebral implant |
CN104997566A (en) * | 2014-04-17 | 2015-10-28 | 萨摩亚商星世代股份有限公司台湾分公司 | Special dental implant for paranasal sinus |
US10188489B2 (en) | 2014-04-17 | 2019-01-29 | Star Generation Limited Taiwan Branch | Sinus implant |
CN105012025A (en) * | 2014-04-17 | 2015-11-04 | 萨摩亚商星世代股份有限公司台湾分公司 | Multi-sized dental implant body general spiral pushing structure |
AU2014202173B2 (en) * | 2014-04-19 | 2020-02-06 | Star Generation Limited Taiwan Branch | Implant having a bone growth powder/biomedical filler rotary push structure |
CL2015001657S1 (en) | 2014-12-15 | 2016-09-02 | Jjgc Indústria E Comércio De Materiais Dentários S A | Configuration applied to bone implant. |
BR102014031426B1 (en) | 2014-12-15 | 2018-07-24 | Jjgc Ind E Comercio De Materiais Dentarios S/A | implant |
US10413387B2 (en) | 2015-01-20 | 2019-09-17 | John Andler | Threaded dental implant |
US11426290B2 (en) | 2015-03-06 | 2022-08-30 | DePuy Synthes Products, Inc. | Expandable intervertebral implant, system, kit and method |
US9913727B2 (en) | 2015-07-02 | 2018-03-13 | Medos International Sarl | Expandable implant |
USD783825S1 (en) | 2016-02-05 | 2017-04-11 | Silvio Franco Emanuelli | Post part for a dental implant |
USD783822S1 (en) | 2016-02-05 | 2017-04-11 | Silvio Franco Emanuelli | Root part for a dental implant |
USD783826S1 (en) | 2016-02-05 | 2017-04-11 | Silvio Franco Emanuelli | Root part for a dental implant |
USD783824S1 (en) | 2016-02-05 | 2017-04-11 | Silvio Franco Emanuelli | Root part for a dental implant |
USD783823S1 (en) | 2016-02-05 | 2017-04-11 | Silvio Franco Emanuelli | Post part for a dental implant |
USD785179S1 (en) | 2016-02-05 | 2017-04-25 | Silvio Franco Emanuelli | Post part for a dental implant |
BR102016010184B1 (en) | 2016-05-05 | 2020-10-27 | Jjgc Indústria E Comércio De Materiais Dentários S.A. | prosthetic set and process for producing the same |
CN109688980B (en) | 2016-06-28 | 2022-06-10 | Eit 新兴移植技术股份有限公司 | Expandable and angularly adjustable intervertebral cage with articulation joint |
EP4233801A3 (en) | 2016-06-28 | 2023-09-06 | Eit Emerging Implant Technologies GmbH | Expandable, angularly adjustable intervertebral cages |
US10537436B2 (en) | 2016-11-01 | 2020-01-21 | DePuy Synthes Products, Inc. | Curved expandable cage |
US10888433B2 (en) | 2016-12-14 | 2021-01-12 | DePuy Synthes Products, Inc. | Intervertebral implant inserter and related methods |
US10398563B2 (en) | 2017-05-08 | 2019-09-03 | Medos International Sarl | Expandable cage |
US11344424B2 (en) | 2017-06-14 | 2022-05-31 | Medos International Sarl | Expandable intervertebral implant and related methods |
US10940016B2 (en) | 2017-07-05 | 2021-03-09 | Medos International Sarl | Expandable intervertebral fusion cage |
IL254999B1 (en) * | 2017-10-15 | 2024-01-01 | Ben Zion Karmon | Dental implant |
DE102018102568A1 (en) * | 2018-02-06 | 2019-08-08 | Karl Leibinger Medizintechnik Gmbh & Co. Kg | Implant with radially extended post to support structure, soft tissue displacement system, manufacturing process and planning process for manufacturing an implant |
US11446156B2 (en) | 2018-10-25 | 2022-09-20 | Medos International Sarl | Expandable intervertebral implant, inserter instrument, and related methods |
US11426286B2 (en) | 2020-03-06 | 2022-08-30 | Eit Emerging Implant Technologies Gmbh | Expandable intervertebral implant |
US11786343B2 (en) | 2020-07-09 | 2023-10-17 | Southern Implants (Pty) Ltd | Dental implants with stepped threads and systems and methods for making the same |
US11850160B2 (en) | 2021-03-26 | 2023-12-26 | Medos International Sarl | Expandable lordotic intervertebral fusion cage |
US11752009B2 (en) | 2021-04-06 | 2023-09-12 | Medos International Sarl | Expandable intervertebral fusion cage |
US20230372067A1 (en) * | 2022-05-20 | 2023-11-23 | Dustin Shin | Dental implant for preserving bone and improving osseointegration |
Family Cites Families (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3905109A (en) * | 1974-03-22 | 1975-09-16 | Crysta Dent Inc | Dental implant member |
US4406623A (en) | 1981-01-09 | 1983-09-27 | Grafelmann Hans L | Screw-type bone implant for receiving a dental prosthesis |
US4842518A (en) * | 1986-09-04 | 1989-06-27 | Vent-Plant Corporation | Submergible screw-type dental implant and method of utilization |
US5015186A (en) * | 1987-09-24 | 1991-05-14 | Detsch Steven G | Dental implant attachment system |
IT1218548B (en) * | 1987-12-04 | 1990-04-19 | Pier Luigi Mondani | SELF-THREADING PIN FOR IMPLANTING DENTAL PROSTHESES |
FR2647664A1 (en) * | 1989-06-05 | 1990-12-07 | Pascal Prunier | METHOD FOR MANUFACTURING DENTAL OR MAXILLO-FACIAL PROSTHESES ELEMENTS BY OXIDIZING AN ALUMINUM LAYER PREVIOUSLY DEPOSITED ON A PROSTHESIS IN ORDER TO OBTAIN A SEALED ALUMINA LAYER WHICH IS INTIMELY LINKED TO THE SUBSTRATE COMPRISING THE SOUL THIS PROSTHESIS |
US5007835A (en) * | 1989-08-17 | 1991-04-16 | Maurice Valen | Dental implant |
SE463392B (en) * | 1989-09-15 | 1990-11-19 | Nobelpharma Ab | THE DISTANCE ORGANIZATION OF A KEKBENSFOER ANCHORED DENTAL IMPLANT |
US5052930A (en) * | 1989-11-22 | 1991-10-01 | Lodde Jean Pierre | Dental implant and method of implantation |
US5088926A (en) * | 1990-01-05 | 1992-02-18 | Manfred Lang | Implant for the jawbone |
EP0438048B1 (en) * | 1990-01-15 | 1994-05-18 | Friatec Aktiengesellschaft Keramik- und Kunststoffwerke | Dental implant |
US5062800A (en) | 1990-03-21 | 1991-11-05 | Core-Vent Corporation | Dental implant handle, and dental implant package including a dental implant handle |
US5643269A (en) * | 1990-08-24 | 1997-07-01 | Haerle; Anton | Externally threaded bodies for use as taps or screws |
US5209659A (en) | 1990-09-05 | 1993-05-11 | Impla-Med Incorporated | Method for installing a dental implant |
DE69227204D1 (en) * | 1991-05-24 | 1998-11-05 | Kerry Zang | BONE FASTENING DEVICE |
US5505736A (en) | 1992-02-14 | 1996-04-09 | American Cyanamid Company | Surgical fastener with selectively coated ridges |
US5662476A (en) * | 1992-06-29 | 1997-09-02 | Nobel Biocare Ab | Prosthetic implant restoration method |
US5322443A (en) * | 1993-02-11 | 1994-06-21 | Implant Innovations, Inc. | Method and means for affixing a component to a dental implant |
US5692904A (en) * | 1993-02-11 | 1997-12-02 | Implant Innovations, Inc. | Method and means for affixing a component to a dental implant |
CA2093900C (en) * | 1993-04-13 | 1996-12-10 | Norman H. K. Kwan | Dental implant having cutting means |
US5527183A (en) * | 1993-08-18 | 1996-06-18 | Collaborative Enterprises, Inc. | Endosseous implant system |
US5642996A (en) | 1993-10-20 | 1997-07-01 | Nikon Corporation | Endosseous implant |
DE4342415C2 (en) * | 1993-12-13 | 1998-04-16 | Haerle Anton | Tension-optimized thread profile |
US5368160A (en) | 1993-12-21 | 1994-11-29 | Calcitek, Inc. | Sterile packaging for dental implant system |
US5522843A (en) * | 1994-02-23 | 1996-06-04 | Orthopaedic Biosystems Limited, Inc. | Apparatus for attaching soft tissue to bone |
US5582299A (en) | 1994-03-01 | 1996-12-10 | Implant Innovations, Inc. | Dental implant packaging |
US5538428A (en) * | 1994-04-05 | 1996-07-23 | Attachments International | Packing delivery system for dental implant and method |
ATE274861T1 (en) * | 1994-11-30 | 2004-09-15 | Implant Innovations Inc | PREPARATION OF AN IMPLANT SURFACE |
US5743914A (en) * | 1996-06-06 | 1998-04-28 | Skiba; Jeffry B. | Bone screw |
US5967783A (en) | 1998-10-19 | 1999-10-19 | Ura; Robert S. | Threaded dental implant with a core to thread ratio facilitating immediate loading and method of installation |
-
1998
- 1998-10-19 US US09/175,007 patent/US5967783A/en not_active Expired - Fee Related
-
1999
- 1999-10-12 US US09/416,355 patent/US6234797B1/en not_active Expired - Fee Related
- 1999-10-19 CA CA002349571A patent/CA2349571A1/en not_active Abandoned
- 1999-10-19 WO PCT/US1999/024364 patent/WO2000023003A1/en not_active Application Discontinuation
- 1999-10-19 AU AU11225/00A patent/AU1122500A/en not_active Abandoned
- 1999-10-19 EP EP99955024A patent/EP1126793A1/en not_active Withdrawn
- 1999-10-19 JP JP2000576781A patent/JP2002527188A/en active Pending
-
2001
- 2001-05-21 US US09/861,874 patent/US20010055744A1/en not_active Abandoned
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2211292A1 (en) * | 2002-07-10 | 2004-07-01 | Implant Microdent System, S.L. | Dental implant comprises threaded bar with end for insertion in bone mass and opposite end for receiving components of dental implant together with axial hole for coupling them |
US20060204930A1 (en) * | 2003-03-26 | 2006-09-14 | Young-Taek Sul | Helical implant |
DE202005005421U1 (en) * | 2005-04-05 | 2006-08-10 | Dinkelacker, Wolfgang, Dr.med.dent. | Helical dental implant |
US20060223030A1 (en) * | 2005-04-05 | 2006-10-05 | Wolfgang Dinkelacker | Helical dental implant |
ES2285955A1 (en) * | 2007-02-16 | 2007-11-16 | Marcela Ridao Dalmau | Dental implant has main body with insertion end in bony mass of conical trunk shape and upper terminal in opposite recipient end for attachment of dental prosthesis with regular prismatic form |
US8221119B1 (en) | 2007-10-09 | 2012-07-17 | Maurice Valen | Dental implant and method of installing the same |
US20170196663A1 (en) * | 2009-11-03 | 2017-07-13 | Ben Zion Karmon | Dental Implant |
US11166791B2 (en) | 2009-11-03 | 2021-11-09 | Ben-Zion Karmon | Dental implant |
US11273014B2 (en) * | 2009-11-03 | 2022-03-15 | Ben Zion Karmon | Dental implant |
US11291530B2 (en) | 2009-11-03 | 2022-04-05 | Ben Zion Karmon | Dental implant |
US11690699B2 (en) | 2009-11-03 | 2023-07-04 | Ben Zion Karmon | Dental implant |
US11707345B2 (en) | 2009-11-03 | 2023-07-25 | Ben Zion Karmon | Dental implant |
US11911238B2 (en) | 2009-11-03 | 2024-02-27 | Ben Zion Karmon | Dental implant |
Also Published As
Publication number | Publication date |
---|---|
CA2349571A1 (en) | 2000-04-27 |
WO2000023003A1 (en) | 2000-04-27 |
US6234797B1 (en) | 2001-05-22 |
AU1122500A (en) | 2000-05-08 |
EP1126793A1 (en) | 2001-08-29 |
JP2002527188A (en) | 2002-08-27 |
US5967783A (en) | 1999-10-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6234797B1 (en) | Dental implant and method for installing the same | |
AU609743B2 (en) | Dental prostheses | |
EP0904029B1 (en) | Dental implant system | |
US6227857B1 (en) | Dental and orthopedic implant system | |
US4624673A (en) | Device system for dental prosthesis fixation to bone | |
US5984681A (en) | Dental implant and method of implanting | |
US5816812A (en) | Dental implant fixture | |
KR100904471B1 (en) | Implant and arrangement for inserting said implant | |
US4824372A (en) | Apparatus for the fixation of a single-tooth restoration | |
US5004421A (en) | Dental implant and method of using same | |
US6227858B1 (en) | Bone anchoring element | |
JP3488493B2 (en) | Anchor element for fixation in bone tissue | |
US20060216673A1 (en) | Dental implant | |
US20110123953A1 (en) | Fixture of two-piece dental implant | |
US5752830A (en) | Removable dental implant | |
SE512050C2 (en) | Rotationally symmetrical leg anchoring element | |
US20080145819A1 (en) | Screw-in Enossal Dental Implant | |
HU216388B (en) | Implantatum with pressure surface | |
US20030036036A1 (en) | Immediate load dental implant system and method of use | |
AU2008223902A1 (en) | Dental implant, abutment structure and method for implanting a dental implant | |
US5873720A (en) | Spacing member | |
US11446119B1 (en) | Dental implant and method of installation |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE |
|
AS | Assignment |
Owner name: SUNTRUST BANK, GEORGIA Free format text: SECURITY AGREEMENT;ASSIGNORS:EXACTECH, INC.;ALTIVA, LLC;BRIGHTON PARTNERS, LLC;AND OTHERS;REEL/FRAME:027779/0053 Effective date: 20120224 |
|
AS | Assignment |
Owner name: EXACTECH, INC., FLORIDA Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:SUNTRUST BANK, AS ADMINISTRATIVE AGENT;REEL/FRAME:037358/0511 Effective date: 20151217 Owner name: ALTIVA, LLC, FLORIDA Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:SUNTRUST BANK, AS ADMINISTRATIVE AGENT;REEL/FRAME:037358/0511 Effective date: 20151217 Owner name: BRIGHTON PARTNERS, LLC, FLORIDA Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:SUNTRUST BANK, AS ADMINISTRATIVE AGENT;REEL/FRAME:037358/0511 Effective date: 20151217 Owner name: EXACTECH INTERNATIONAL, LLC, FLORIDA Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:SUNTRUST BANK, AS ADMINISTRATIVE AGENT;REEL/FRAME:037358/0511 Effective date: 20151217 |